Python:如何使用正则表达式将句子拆分为新行，然后使用空格将标点符号与单词分开？

Question

我有以下输入:

input = "I love programming with Python-3.3! Do you? It's great... I give it a 10/10. It's free-to-use, no $$$ involved!"

首先，每个句子都应该换行。然后，除了“/”、“'”、“-”、“+”和“$”之外的所有标点符号都应与单词分开。

所以输出应该是:

"I love programming with Python-3 . 3 ! 
Do you ?  
It's great . . . 
I give it a 10/10 . 
It's free-to-use , no $$$ involved !"

我使用了以下代码:

>>> import re
>>> re.sub(r"([\w/'+$\s-]+|[^\w/'+$\s-]+)\s*", r"\1 ", input)
"I love programming with Python-3 . 3 ! Do you ? It's great ... I give it a 10/10 . It's free-    to-use , no $$$ involved ! "

但问题是它没有将句子分隔成新行。在标点符号和字符之间创建空格之前，如何使用正则表达式执行此操作？

Answer 1

([!?.])(?=\s*[A-Z])\s*

您可以使用此正则表达式在您的正则表达式之前创建句子。请参阅演示。替换为 \1\n。

https://regex101.com/r/sH8aR8/5

x="I love programming with Python-3.3! Do you? It's great... I give it a 10/10. It's free-to-use, no $$$ involved!"
print re.sub(r"([!?.])(?=\s*[A-Z])",r"\1\n",x)

编辑:

(?<![A-Z][a-z])([!?.])(?=\s*[A-Z])\s*

试试这个。查看不同数据集的演示。

https://regex101.com/r/sH8aR8/9